They found that when this mechanism malfunctions, progenitor cells stop creating bone-producing cells, and instead create fat cells.

I wonder what caused this mechanism in the mouse bone marrow to malfunction? I think the researchers will want to know the answer to this and whether any similar mechanism exists in humans. I don't know what they will find, but either way I personally think low carb is good for the bones because it controls metabolic syndrome, eliminates many unhealthy foods and makes a person generally healthier, which I think must also be good for the bones.